Howtosignalprocessing
- What is the frequency of power line interference?
- What is 50 Hz power line interference?
- What causes power line interference?
- What are the principle causes of 50 or 60 Hz interference?
What is the frequency of power line interference?
The PLI is introduced because of the electromagnetic interference of the alternating supply. Depending on the power supply, the frequency of PLI is 50 Hz or 60 Hz.
What is 50 Hz power line interference?
The powerline interference (PLI), with the fundamental PLI component of 50 Hz/60 Hz and its harmonics, is one of the most disturbing noise sources in biopotential recordings that hampers the analysis of the electrical signals generated by the human body.
What causes power line interference?
The Cause of Power-Line Noise
Typical culprits include insufficient and inadequate hardware spacing such as a gap between a ground wire and a staple.
What are the principle causes of 50 or 60 Hz interference?
The most common cause of 50 Hz interference is the disconnected electrode resulting in a very strong disturbing signal, and therefore needs quick action. Electromagnetic interference from the power lines also results in poor quality tracings.
